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Optimal frequency/time combination of whole-body vibration training for improving muscle size and strength of people with age-related muscle loss (sarcopenia): A randomized controlled trial.
Geriatr Gerontol Int. 2017 Oct; 17(10):1412-1420.GG

Abstract

AIM

To determine the optimal combination of frequency and exposure time of a whole-body vibration (WBV) training program for improving muscle performance of older people with age-related muscle loss.

METHODS

A total of 80 community-dwelling older adults with age-related muscle loss were randomly divided into four equal groups, namely, low-frequency long duration (20 Hz × 720 s), medium-frequency medium duration (40 Hz × 360 s), high-frequency short duration (60 Hz × 240 s) and control (no training) for 12-week WBV training and 12-week follow up. Assessments were carried out at baseline, mid-intervention, post-intervention, mid-follow up, follow up for the cross-sectional area of the vastus medialis, isometric knee extension strength at 90°, and isokinetic knee extension at 60°/s and 180°/s.

RESULTS

There was a significant time × group interaction effect in isokinetic knee extension at 180°/s. Significant time effects were found in all muscle strength outcome variables. Group differences in percentage change from baseline were significant between medium-frequency medium duration and control on isokinetic knee extension at 180°/s and 60°/s. No changes were found in the cross-sectional area of the vastus medialis.

CONCLUSIONS

With the total number of vibrations controlled, the combination of 40 Hz and 360 s of WBV exercise had the best outcome among all other combinations tested. The improvements in knee extension performance can be maintained for 12 weeks after cessation of WBV training. Geriatr Gerontol Int 2017; 17: 1412-1420.

Authors+Show Affiliations

Sports Training Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, SAR.Sports Training Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, SAR.Sports Training Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, SAR.Sports Training Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, SAR.

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

27578535

Citation

Wei, Ning, et al. "Optimal Frequency/time Combination of Whole-body Vibration Training for Improving Muscle Size and Strength of People With Age-related Muscle Loss (sarcopenia): a Randomized Controlled Trial." Geriatrics & Gerontology International, vol. 17, no. 10, 2017, pp. 1412-1420.
Wei N, Pang MY, Ng SS, et al. Optimal frequency/time combination of whole-body vibration training for improving muscle size and strength of people with age-related muscle loss (sarcopenia): A randomized controlled trial. Geriatr Gerontol Int. 2017;17(10):1412-1420.
Wei, N., Pang, M. Y., Ng, S. S., & Ng, G. Y. (2017). Optimal frequency/time combination of whole-body vibration training for improving muscle size and strength of people with age-related muscle loss (sarcopenia): A randomized controlled trial. Geriatrics & Gerontology International, 17(10), 1412-1420. https://doi.org/10.1111/ggi.12878
Wei N, et al. Optimal Frequency/time Combination of Whole-body Vibration Training for Improving Muscle Size and Strength of People With Age-related Muscle Loss (sarcopenia): a Randomized Controlled Trial. Geriatr Gerontol Int. 2017;17(10):1412-1420. PubMed PMID: 27578535.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Optimal frequency/time combination of whole-body vibration training for improving muscle size and strength of people with age-related muscle loss (sarcopenia): A randomized controlled trial. AU - Wei,Ning, AU - Pang,Marco Yc, AU - Ng,Shamay Sm, AU - Ng,Gabriel Yf, Y1 - 2016/08/31/ PY - 2016/02/27/received PY - 2016/06/10/revised PY - 2016/06/22/accepted PY - 2016/9/1/pubmed PY - 2018/7/17/medline PY - 2016/9/1/entrez KW - age-related muscle loss KW - optimal setting KW - whole-body vibration SP - 1412 EP - 1420 JF - Geriatrics & gerontology international JO - Geriatr Gerontol Int VL - 17 IS - 10 N2 - AIM: To determine the optimal combination of frequency and exposure time of a whole-body vibration (WBV) training program for improving muscle performance of older people with age-related muscle loss. METHODS: A total of 80 community-dwelling older adults with age-related muscle loss were randomly divided into four equal groups, namely, low-frequency long duration (20 Hz × 720 s), medium-frequency medium duration (40 Hz × 360 s), high-frequency short duration (60 Hz × 240 s) and control (no training) for 12-week WBV training and 12-week follow up. Assessments were carried out at baseline, mid-intervention, post-intervention, mid-follow up, follow up for the cross-sectional area of the vastus medialis, isometric knee extension strength at 90°, and isokinetic knee extension at 60°/s and 180°/s. RESULTS: There was a significant time × group interaction effect in isokinetic knee extension at 180°/s. Significant time effects were found in all muscle strength outcome variables. Group differences in percentage change from baseline were significant between medium-frequency medium duration and control on isokinetic knee extension at 180°/s and 60°/s. No changes were found in the cross-sectional area of the vastus medialis. CONCLUSIONS: With the total number of vibrations controlled, the combination of 40 Hz and 360 s of WBV exercise had the best outcome among all other combinations tested. The improvements in knee extension performance can be maintained for 12 weeks after cessation of WBV training. Geriatr Gerontol Int 2017; 17: 1412-1420. SN - 1447-0594 UR - https://www.unboundmedicine.com/medline/citation/27578535/Optimal_frequency/time_combination_of_whole_body_vibration_training_for_improving_muscle_size_and_strength_of_people_with_age_related_muscle_loss__sarcopenia_:_A_randomized_controlled_trial_ L2 - https://doi.org/10.1111/ggi.12878 DB - PRIME DP - Unbound Medicine ER -